/*
 * Copyright (C) 2015 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.tencent.matrix.resource.common.utils;

/**
 * Created by tangyinsheng on 2017/6/2.
 *
 * This class is ported from LeakCanary.
 */
public final class Preconditions {

    /**
     * Returns instance unless it's null.
     *
     * @throws NullPointerException if instance is null
     */
    public static <T> T checkNotNull(T instance, String name) {
        if (instance == null) {
            throw new NullPointerException(name + " must not be null");
        }
        return instance;
    }

    private Preconditions() {
        throw new AssertionError();
    }
}
